Shure PSM600 Wireless Transmitter & Receiver In-Ear Monitors 642.275/646.500MHz. Good condition with signs of use. The item "Shure PSM600 Wireless Transmitter & Receiver In-Ear Monitors 642.275/646.500MHz" is in sale since Saturday, October 30, 2021. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Microphones & Wireless Systems". The seller is "athalahta" and is located in Saint Charles, Illinois.